Performance of Geopolymer Mortar Containing PVC Plastic Waste from Bottle Labels at Normal and Elevated Temperatures

This work focused on reusing polyvinyl chloride (PVC) plastic waste from bottle labels (BLWA) as lightweight aggregates in geopolymer mortar. way of is beneficial for diminishing the negative impacts plastics environment and reducing CO2 emissions by using an alternative cementing material. BLWA was used to partially substitute natural fine aggregate at ratios 0, 5, 10, 15, 20% volume. The mortar properties were tested, durability after exposure elevated temperatures also assessed. It found that strengths adversely affected increasing content. water absorption porosity increased with benefits reduced density (9–17%) thermal conductivity (28–44%). containing 5–15% satisfied requirement a masonry work. After up 600 °C, more than control due degradation high temperatures. However, when temperature °C 900 there no further loss strength. Microstructure analysis indicated caused voids microcracks mortars, especially ones BLWA. these cracks minimized sintering effects. findings this confirmed feasibility PVC derived produce construction material insulation properties.